2026-05-09 合肥物質科学研究院（HFIPS）
Left: Addressable and Precise Manipulation of Magnetic Skyrmions. Right: Cover Article. (Image by FENG Qiyuan)
＜関連情報＞
- https://english.hf.cas.cn/nr/rn/202605/t20260509_1158634.html
- https://onlinelibrary.wiley.com/doi/10.1002/rar2.70080
振動する局所磁場による個々の磁気スキルミオンサイズの巨大な調整可能性 Giant Tunability of Individual Magnetic Skyrmion Size via an Oscillating Local Magnetic Field
Cai-Hong Xie, Shuai Dong, Yu-Ying Bai, Yu-Yan Han, Mang-Yuan Ma, Li Pi, Ying Guo, Jing Zhang, Ji-Hao Wang, Weng-Jie Meng, Yu-Bin Hou, Fu-Sheng Ma, Qing-You Lu, Qi-Yuan Feng
Rare Metals Published: 24 December 2025
DOI:https://doi.org/10.1002/rar2.70080
ABSTRACT
Magnetic skyrmions hold great promise as memory and computing elements in future spintronic devices. Despite the demonstration of various devices, techniques for addressable and high-precision manipulation of individual skyrmions remain scarce. This study presents an experimental realization of size-continuous step-resolved skyrmion tuning under ambient conditions using periodic magnetic force microscopy (MFM) excitation. The writing and deletion of selected skyrmions can be achieved in a controlled manner. The skyrmion size can be continuously tuned from hundreds of nanometers down to tens of nanometers, achieving nearly an order of magnitude reduction. The threshold skyrmion size can be significantly reduced. Micromagnetic simulations reveal that the oscillating field can induce partial distortions in skyrmion configurations, thereby mitigating pinning effects and enabling more efficient control. Our results may offer a more efficient and controllable approach for engineering topological spin textures.
